摘要
新疆以石脑油及轻质柴油为原料蒸气裂解生产乙烯副产C5馏分的主要组成为含有异戊二烯 9%～ 14 %、间戊二烯 10 %～ 17%、双环戊二烯 /环戊二烯 11%～ 16 %。 3种二烯烃的总含量占到了 30 %～ 5 0 %。分离工艺流程设计为两次萃取蒸馏 ,两次精馏 ,可同时分离异戊二烯、间戊二烯、双环戊二烯 ,并可生产一定量的戊烷馏分和炔烃馏分。所选取的萃取剂为无水二甲基甲酰胺。过程总收率为原料中异戊二烯的 90 %～ 95 %。
The C 5 fraction derived from ethylene steamcracker in Xinjiang Dushanzi contains some useful components,which are isoprene 9%～14%,cyclopentadiene 11%～16% and piperylene 10%～17%.These three kinds of primary products can be separated at the same time by the technics composed of thermal polymerization and twice extractions,twice rectifies.Some pentane fration and alkine fraction can be produced as well.The extract reagent is DMC.The final product,srecovery percentage is 90%～95% at the whole process.
出处
《化工时刊》
CAS
2004年第8期12-16,共5页
Chemical Industry Times
